MUNICIPALITIES Group Delta has a long history providing various professional services on an as-needed and project basis to local municipalities throughout California. Below is a sampling of our municipality experience. View All Projects Pier 22.5 Fireboat Station Mill Creek Wetlands Yolo County Courthouse San Mateo-Foster City School District Anaheim Convention Center Schaad Road Bridge Replacement Whiskey Slide Road Bridge Replacement Santa Cruz Water Treatment Tanks City of Napa B Tank Oakland Airport Runway 12-30 Rehabilitation Gerald Desmond Bridge Regional Connector Transit Corridor